I've had sense now since beginning of july and it has worked OK until today.
First in the morning just after 10 o'clock Sense just froze. Clock stopped to show 10:10, no lan activity according to lan connector leds, also all wifi connections were lost. I rebooted the device and everything was OK again. The same happened again this evening around 21:45. Again Sense just frozed/died. Pulling the mains plug off and back again fixed the problem. What could be the cause for this? mobile app logs do not have any indication of the events. This isn't very promising...